— Two crowns — Same mass, different density — Vertical slider ✓ Slider works — Slider controls crowns — Slider direction correct — Full slider range ✓ Fall animation ✓ Water displacement — Rising water level — Splash effects ✓ Physics correct ✓ Live mass value ✓ Live volume value ✓ Live density value ✓ Live displaced water — Gilded displaces more — Heureka animation ✓ No external deps — Light bg / dark text ✓ Self-contained HTML
Competent single-object Archimedes simulator with correct buoyancy physics and live readouts, but completely misses the brief: no two crowns, no vertical slider controlling immersion depth, no gilded-vs-pure-gold comparison, no Heureka moment, and dark background violates the light-bg requirement.
8,146 output tokens · claude-opus-4-6 · end_turn
Competent single-object Archimedes simulator with correct buoyancy physics and live readouts, but completely misses the brief: no two crowns, no vertical slider controlling immersion depth, no gilded-vs-pure-gold comparison, no Heureka moment, and dark background violates the light-bg requirement.